Glory-hole furnace



(No Model.)

l 2 Sheets-Sheet 1. 0. D. TRIMBLE.

GLORY HOLE FURNAGE.

Patented NovpZl, 18 93 y .D a H .B 1

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I w I (No Model.) 2 Sheets-Sheet 2.

0. D. TRIMBLE. GLORY HOLE FURNACE- No. 509,146. Paten-tedNOm-ZI, 1893.

ms NATIONAL Lrmoaru AN 'vnsmuamn n c UNITED STATES PATENT OFFICE.

CAIRO DARIUS TRIMBLE, OF OTTAWA, ILLINOIS.

GLORY-HOLE'FURNACE.

SPECIFICATION forming part of Letters Patent No. 509,146, dated November 21, 1893.

Application filed August 18, 1892. Renewed October 5, 1893- Serial No. 487,293. (No model.)

To all whom it may concern: I

Be it known that I, CAIRO DARIUS TRIMBLE, of Ottawa, in the county of La Salle and State of Illinois, have invented certain new and useful Improvements in Glory-Hole Furnaces, of which the following is a full, clear, and exact description, reference being had. to the accompanying drawings, and to the letters of reference marked thereon.

Heretofore the reheating of the necks of bottles in order to soften them preparatory to the shaping of the heads thereof, has been attended by considerable breakage and by the softening of the shoulders of thebottles to such an extent that in finishing they became misshapen and defective or useless. This breakage and softening of the shoulders of the bottles,is due to the fact, that, heretofore, glory hole furnaces have been so constructed that the radiated and reflected heated currents were relied on to perform the work, and thereby causing the hot currents to impinge upon the work in such direction and in such manner that it softened the shoulders, and, by entering the mouth of the bottle, softened the throat or neck of the same and rendered the finishing both uncertain and wasteful.

This latter incident of manufacturing is due to the fact that when the operator gets into the finishing chair and revolves his punty on the arms of the same, and shapes the heads of the bottles with the finishing tool, the

shoulders, being soft, are not strong enough to resist the torsional strain put upon them, get twisted, or permit the neck to sink into the shoulders, and get out of shape. Besides this under the old process the throat of the bottle being softened by the heat entering the mouth thereof, and not having deposited thereon sufficient of the free carbon to lubricate them,

adhere to the finishing tool and become view of my improved furnace setup ready for use. Fig. 2, is alongitudinal vertical section through the said furnace taken on dotted line 2, 2, Fig. 3, and Fig. 3, is a transverse vertical section taken on dotted line 3, 3, Fig. 2.

Referring to the drawings A'represents the base-plate or floor of the furnace; B, B, the vertical end-Walls thereof; 0, O, the vertical side-Walls thereof; and D, the roof or topplate. These several parts of my furnace are connected together in any suitable manner that will permit of theirbeing removed easily and separated one from the other. Each of said plates or walls is made integral and of Suitable material, which may be either metal or fire-clay tile. The side-walls C, are provided, preferably, with three glory holes 0, which are located about as shown, and are provided, in their lower edges, immediately below each glory hole, with an arch (1, out through which the products of combustion can pass, as will hereinafter be more fully explained.

In the center of the roof or top-plate D is a longitudinally elongated opening I), through which the heated currents are injected from the burner d.

What'has been heretofore described constitutes the gist of my invention, and its operation is substantially as follows:-The bottle necks are inserted through the glory holes 0, until the shoulders of the bottles prevent farther'ingress. The heated products of combustion issuing from the burner d, enter the furnace, through the opening I), and are spread in their passage therethrough into the form of'a vertical sheet of flame, which directly impinges against the extremities of the necks of the bottles at right angles thereto and continuing downward to a great extent exhaust from saidfurnace out through the archesd. The heated'current issuing from the arch above which the bottle is held, heats the punty E, and keeps the body of the bottle sufficiently warm so as to prevent such a difference in the temperature of the part of the bottle inside the furnace-and that which is outside, as to avoid crystallization, and breakage. A certain per cent. of the spent currents of combustion injected into the furnace, being unable to exhaust through arches d, arise within the chamber and throw off a quantity of free carbon, which is deposited to a greater or less extent upon the necks of the bottles so as to lubricate the same for finishing. By striking the extremity of the neck of the bottle at right angles the heated products of combustion do not have the opportunity to get into the mouth of the same, and, do not envelop the neck of the bottle-in such direction and in such manner as to get inside and issue from the glory hole in which the bottle is inserted, and soften the shoulders. Itwill thus be seen that I am enabled to heat the extremities of the bottle necks to such an extent as to soften the same equally and properly, without heating to excess the neck and shoulders, or softening and injuring portions of the neck, or throat of the bottle. At the same timeIam enabled to lubricate with free carbon the neck of the bottle, so that when the same is being finished, the finishing tool will not adhere to the bottle neck, and thus cause the same to be finished in a defective manner.

The accessories of my invention consist of a stand F, oil-tank G, and flame-spreader H. My glory hole furnace rests upon the top-plate of said stand, which has longitudinally projecting arms that have their ends connected by a cross-bar, and has a section of iron rail or pig placed cross-wise on one end of its top for the punty to rest upon. The oil-tank is supported in a suitable manner on the upper end of standard e, the lower end of which passes through a lug extending laterally from the floor-plate of the furnace and is adjustably secured therein by means of a suitable set-screw, as shown. The upper end of this standard is suitably constructed for holding the tank so that the same can be easily re moved. The flow of oil from this tank is regulated by means of a suitable faucet, and

drips into the funnel shaped end of the pipe f, the lower end of which enters the upper end of the burner, as shown, and then is bent so as to extend longitudinally downward in the bore of said burner, to and terminating near the lower opening thereof. The said burner a is embraced and supported by a collar secured to the end of anadjustable arm 9 passing through a standard the lower extremity of the vertical part of which latter passes through a lug 9', extending from the end of the floor-plate of the furnace opposite the end in which the standard is secured in, and is adjustable within the lug g by means of a suit able set-screw, as shown.

The fuel used for my glory hole furnace is oxygenized carbon; the air is provided under pressure through the pipe 'L entering the upper end of the burner, and the oil through pipe f. The oil being turned on, is lighted and permitted to burn until the burner is sufficiently heated to vaporize the oil, whereupon the air is injected into the burner so as to direct the flame and create better combustion. This form of fuel while not new, fully avoids the possibility of the work being discolored, as is the case where the bottle necks are subjected to the heated products of combustion issuing direct from a grate furnace. By the use of this fuel, moreover, myfurnace is made yet more different from those forms of glory hole furnaces in which heretofore the heated currents impinge along the bottle necks parallel thereto. The flamespreader above referred to is a tubular casting, the circular mouth of the opening in the upper cylindrical end of which comes immediately under the mouth of the burner, and the flared lower end of which rests on the topplate of the furnace so that the longitudinally elongated mouth of the opening therethrough will register with the opening Z) in said topplate. This opening h extends vertically through the spreader H and is elongated so as to correspond with the length of theelongation of the opening I) in the top-plate B, and in order to insure the even distribution of the flame as it passes through it, the sidewalls of said opening at points diametrically opposite each otherareprojectedinwardtowardthecenter of the passage so as to form vertically disposed sharp edges, which at the same time narrow the lower end of the opening immediately under the center of the burner and direct the flame so as to reduce the central pressure of the current, and so as to cause the same to spread into a sheet as it enters the glory hole furnace. This spreader may be dispensed with, however, and the mouth of the burner be formed so as to accomplish substantially the same purpose.

Instead of making the arches d in the lower edge of the side-walls O of the furnace, loan, if desired, make said side-walls slightly less in height than the distance from the floorplate to the top-plate, and then raise the said side-walls up until their upper edges impinge against and support the top-plate of the furnace, so as to leave one continuous opening under said side-wall extending from end to end of the furnace. This method of securing the objects of my invention would naturally suggest itself after theidea of the smoke arches was clearly understood.

What I claim as new is- 1. The combination with the floor A, the end-walls B, B, the side-walls O, 0, having the glory-holes c therein, and the to p-plate D, having the longitudinally elongated opening b therein, of the burner or placed above, and in register with said opening b, and injecting the heated currents therethrough.

2. The combination with a glory hole furnace having a series of glory holes in the sides and provided with an opening therein below each glory-hole, and having an inlet opening in the top thereof of a burner arranged to discharge heated products of combustion down through said opening in the top of the furnace, as set forth.

3. The combination with a glory hole furnace having a series of glory holes in its sides, and an elongated inlet opening in its top, of a burner, and a flame spreader, the latter being placed immediately under said burner and 5 in register with the elongated opening in the top of the furnace, and having the passage therethrough so constructed as to spread and equalize the pressure of the current of flame, as set forth. I 4 The combination with a glory hole furnace having aburner opening in roof thereof, having a series of glory holes in its sides, and provided with an exit opening below each glory hole, of a burner adischarging through 15 said burner opening, and the flame spreader .H, as set forth;

5. 'Ihecombinatio'n with a glory hole furnace, the shape of the floor chamber of which is rectangular, and the glory holes in which are located above the floor thereof, of a burner 26 so located as to discharge a heated current at right angles directly against the work, said furnace being provided with suitable openings near that side of the glory holes opposite said burner, so that the said heated currents, :55 after impinging against the work, are but partially exhausted, and the residue will envelop the neck of a bottle and lubricate the same,

as set forth.

CAIRO DARIUS TRIMBLE.

Witnesses:

FRANK D. THOMASON, A. A. HALL. 

